Merge branch 'v2-prototype' into feature/website/wallet-flex-box

* v2-prototype: (95 commits)
  Add missing dep to website
  Upgrade solidity parser
  Fix trace test
  Fix linter issues
  Move contract utils
  Fix prettier
  Fix NameResolver
  Fix prettier
  Remove 0x.js as a dependency from website
  Enable 0x.js tests
  Fix small bug in order-utils
  Address feedback
  Fix Tslint error caused by "PromiseLike" value
  Fix Tslint error caused by "PromiseLike" value
  Update dogfood url
  fix contract-wrappers version
  Parse compiler.json in SolCompilerArtifactsAdapter
  Fix TokenTransferProxy artifact name since it's now suffixed with _v1
  Update yarn.lock
  Fix signature verification test
  ...

2 files changed, 9 insertions, 4 deletions

diff --git a/packages/sol-resolver/src/resolvers/fs_resolver.ts b/packages/sol-resolver/src/resolvers/fs_resolver.ts
index 4f05fba88..63fc3448e 100644
--- a/packages/sol-resolver/src/resolvers/fs_resolver.ts
+++ b/packages/sol-resolver/src/resolvers/fs_resolver.ts
@@ -7,7 +7,7 @@ import { Resolver } from './resolver';
 export class FSResolver extends Resolver {
     // tslint:disable-next-line:prefer-function-over-method
     public resolveIfExists(importPath: string): ContractSource | undefined {
-        if (fs.existsSync(importPath)) {
+        if (fs.existsSync(importPath) && fs.lstatSync(importPath).isFile()) {
             const fileContent = fs.readFileSync(importPath).toString();
             return {
                 source: fileContent,
diff --git a/packages/sol-resolver/src/resolvers/name_resolver.ts b/packages/sol-resolver/src/resolvers/name_resolver.ts
index 76bed802e..e489c70a7 100644
--- a/packages/sol-resolver/src/resolvers/name_resolver.ts
+++ b/packages/sol-resolver/src/resolvers/name_resolver.ts
@@ -6,6 +6,8 @@ import { ContractSource } from '../types';
 
 import { EnumerableResolver } from './enumerable_resolver';
 
+const SOLIDITY_FILE_EXTENSION = '.sol';
+
 export class NameResolver extends EnumerableResolver {
     private _contractsDir: string;
     constructor(contractsDir: string) {
@@ -13,7 +15,6 @@ export class NameResolver extends EnumerableResolver {
         this._contractsDir = contractsDir;
     }
     public resolveIfExists(lookupContractName: string): ContractSource | undefined {
-        const SOLIDITY_FILE_EXTENSION = '.sol';
         let contractSource: ContractSource | undefined;
         const onFile = (filePath: string) => {
             const contractName = path.basename(filePath, SOLIDITY_FILE_EXTENSION);
@@ -32,7 +33,6 @@ export class NameResolver extends EnumerableResolver {
         return contractSource;
     }
     public getAll(): ContractSource[] {
-        const SOLIDITY_FILE_EXTENSION = '.sol';
         const contractSources: ContractSource[] = [];
         const onFile = (filePath: string) => {
             const contractName = path.basename(filePath, SOLIDITY_FILE_EXTENSION);
@@ -59,7 +59,12 @@ export class NameResolver extends EnumerableResolver {
             const absoluteEntryPath = path.join(dirPath, fileName);
             const isDirectory = fs.lstatSync(absoluteEntryPath).isDirectory();
             const entryPath = path.relative(this._contractsDir, absoluteEntryPath);
-            const isComplete = isDirectory ? this._traverseContractsDir(absoluteEntryPath, onFile) : onFile(entryPath);
+            let isComplete;
+            if (isDirectory) {
+                isComplete = this._traverseContractsDir(absoluteEntryPath, onFile);
+            } else if (fileName.endsWith(SOLIDITY_FILE_EXTENSION)) {
+                isComplete = onFile(entryPath);
+            }
             if (isComplete) {
                 return isComplete;
             }